package com.briup.sms.web.interceptor;

import com.briup.sms.utils.JWTUtils;
import com.briup.sms.utils.ResultCode;
import com.briup.sms.utils.SMSException;
import io.jsonwebtoken.ExpiredJwtException;
import io.jsonwebtoken.MalformedJwtException;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Component
public class LoginCheckInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        String token = request.getHeader("token");
        System.out.println(token);
        if (token==null){
            throw  new SMSException(ResultCode.USER_NOT_LOGIN);
        }
        try{
            JWTUtils.parse(token);
        }catch (ExpiredJwtException e){
            throw  new  SMSException(ResultCode.TOKEN_EXPIRED);
        }catch (MalformedJwtException e1){
            throw  new SMSException(ResultCode.TOKEN_INVALID);
        }

        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {

    }
}
